Thon de von



no. 614,753. Patented Nov. 22, I898. CHEVALIER "tum PABTHON u: vou. SPEED REGULATOR FOR EXPL'OSIVE ENGINES.

(Application filed Nov. 10, 1897.)

(No Model.)

m: scams wnzns co: Pno'roufr m, WASHINGTON, D. c.

UNITED STATES PATENT OFFICE.

CHEVALIER HENRI PARTHON DE voN,'oF'UooLE, BELGIUM.

SPEED-REGULATOR F'OR EXPLOSl VE-ENGINES.

SPECIFICATION formingpart of Letters Patent No. 614,? 53, dated November 22, 1898.

Application filed November 10, 1897. Serial No. 658,094. (No model.)

To, all whom it may concern.-

Be it known that I, CHEVALIER HENRI PAR- THON'DE VON, engineer, a citizen of Belgium,

. residing at 7 3 avenue de lObservatoir, Uccle,

under the control ofthe engine-governor, so as to regulate by the amount of combustion:

gases consequently emitted the amount of fresh gas mixture admitted for the operation of the engine. 7 v

The exhaust-valve is often operated by means of a rod which, acting longitudinally against'said valve, unseats the same at every revolution of an eccentric to which it is connected and which is mounted on the main shaft of the engine. It has heretofore been proposed to regulate the action of this rod upon the valve for the purpose of controlling the exhaust, and hence the power of the machine, by interposing between the rod and the valve a wedge or similar tapering device that is connected to and whose position is consequently defined by the governor of the engine.

In view of the foregoing my invention particularly relates to means for connecting the wedge or analogous device to the engine-governor in such a manner as to simplify the construction and render the device susceptible of delicate automatic adjustment.

In the accompanyingdrawings, J indicates a chamber that incloses the explosion-space of the motor. Mixed gas and air enter said chamber at the lower end thereof, the gas through the cock L, the passage M, and the annular inlet N, and the air through the ver-, tical passage K, (which is surrounded by said annular inlet,) said passage K having communication with the'atmosphere through the opening K. The outlet for the combustiongases is afforded through a valve-casing R,

which surmounts said chamber J, and an eX- haust-opening R in said valve-casing.

Valves I l and J respectively control the communication between the casing J and the valve-casing R and between the air and gas inlets and said casing J. These valves are situated the one vertically above the other, and they are respectively provided with valvestems H and J", that project through the up per and lower walls of the valve-casing and casing proper, respectively, and that are provided at their outer ends with nuts P and P, between which and the said walls helical springs for holding the valves against their seats are disposed. The upper valve-stem fits snugly in the upper wall of the'valve-casing; but the lower valve-stem is of somewhat smaller diameter than the passage K, through which it'maybe stated it projects, the pas sage K being closed at its lower end by a bushing K, that surrounds the stem and fits snugly within the passage.

Projecting laterally from the casing near its upper end is an arm S, carrying an integral standard 0 midway its length and forming a bearing at its outer end for the Vertical spindle of an ordinary ball-governor A. The lower or movable sleeve T of said governor is provided with a pair of flanges, between which are arranged roller-bearings, that are mounted on the inner sides of forks U at the outer end of a bell-crank lever B, said lever being fulcrumed in the upper end of the standard O. The forked arm of said lever is held downwardly by means of a spiral spring U, that connects it with the arm S.

Pivotally connected at the fulcrumingpoint of said bell-crank lever to the standard 0 is plate E. This plate carries at its outer end a sliding block or wedge E, that is connected to said plate by means of bolts e, which project through elongated longitudinal openings or slotsin said plate, and said plate and its sliding block are disposed between the upper end of valve-stem H and the lower end of a rodG, which rod is operatively connected with an eccentric G, carried on or operated by the main shaft of the motor. The sliding block E is pivotally connected with the arm D of the bell-crank lever by means of a con necting-rod D, and it is provided on its up per surface for a distance that is approximately, equal to the length of movement of said block with an inclined face B, situated within range of the end of the rod G. Said rod G may be provided with a weight G to assist in seating said rod on the block E.

The operation of the device will be understood from an examination of the drawings in View of the foregoing description of its construction.

It will be apparent that though the plate and the sliding block which it carries are movable for a limited distance about the fulcrum of said plate and independently of said lever the block is under the direct control of the lever in so far as its longitudinal reciprocations are concerned. Hence though the lever acts through the sliding block to vary the distance between the lower end of the rod G and the upper end of valve-stem H, and consequently determines the degree of movement of the valve, it does not interfere with the up-and-down movement which the plate and block should be free to make in order to transmit motion from the rod to the valvestem and its valve.

By interposing between the block E and the arm of the lever the rod or link D the movement of the lever about its fulcrum does not necessitate a corresponding movement of the block, but instead the block is free to move longitudinally. Furthermore,were the late E for supporting the block E not provided the block E would tend to sag out of position owing to the indirect connection with the lever. Hence the construction herein shown and described permits only such movements of the block as are practically in accordance with its intended function.

Having thus fully described my invention, I claim- 1. In a gas-engine, the combination with the exhaust-valve, operating means therefor and a ball-governor for the engine, of a longitudinally-reciprocatory wedge interposed between said valve and its operating means, a bell-crank lever operatively connected to the reciprocatory element of said governor, a link connection between said wedge and the free arm of said lever, and a guide-plate for the wedge connected to the same and fulcrumed at the fulcruming-point of said lever, substantially as described.

2. In a gas'engine, the combination with the exhaust-valve, its operating means and a ball-governor for the engine, of a longitudinallyrcciprocaiory wedge interposed between i said valve and its operating means, a bellcrank lever having one of its arms operatively connected to the reciprocatory element of said governor, a link connection between said wedge and the other arm of said lever, and a guide-plate sustaining the wedge, also interposed between the valve and its operating means and fulcrumed at the fulcruming-point of said lever, substantially as described.

3. In a gas-engine, the combination with the exhaust-valve, its operating means anda ball-governor for the engine, of a longitudinally reciprocatory wedge interposed between said valve and its operating means, a bellcrank lever having one of its arms operatively connected to the reciprocatory element of said governor, a link connection between said wedge and the other arm of said lever, a guid eplate sustaining the wedge, also interposed between the valve and its operating means and fulcrumed at thefulcruming-point of said lever, and a slot-and-bolt connection between said plate and the wedge, substantially as described.

4. In a gas-engine, the combination with the explosion-chamber having admission and exhaust valves, the latter valve being normally closed,of a lon gitudinally-reciprocatory rod adapted to actuate said valve, an arm projecting from said chamber, aball-governor for the engine pivotally supported on said arm, said rod and the governor having operative connection with the engine driving shaft, a bell-crank lever also pivotally supported on the arm and having one of its arms operatively connected to the reciprocatory element of said governor, a longitudinal wedge interposed between said valve and the rod, a link connection between said wedge and the other arm of said lover, a guide-plate sustaining the wedge, also interposed between the valve and its operating means and fulcrumed at the fulcruming-point of said lever, and a slot-and-bolt connection between said plate and the wedge, substantially as described.

In testimony whereof I have hereto set my hand in the presence of the two undersigned witnesses.

CllllVALlEll- HENRI lAlt'lllON Dl'l VON.

lVitnesses:

ALFRED lVUNDERLIoK, GREGORY PHELAN. 

